I need open data in HL7/FHIR format for a big data project. I try many portals, but until now i didn't find anything interesting. I'm looking for imaging, EHR and biosignals of any type (ECG, EEG, EMG ecc..)
list of web site links
You can find artificial FHIR data from tools like Synthea. You won't usually find real patient data available on any 'open' interface - because it's considered protected information. To get access, you'll need to make an arrangement with a specific data source, and the data will need to go through a de-identification process specific to your intended use.